“…based upon accurate information and the growth of a communal sense, which receive rational and ethical approval. 177/5/8/3…”

“…They are made stable by making them rational, by giving assurances that sound reasons exist for their performance, and by the actual giving of these reasons where this is practicable: so that boys and girls, who have developed beyond simple appeals to "vanity," continue the practice of cleanliness, partly because it has become habitual, but also because they know the reasons for their actions and intellectually approve of them. …”

“…And at this stage, before behaviour can become fully rational, supported by explanations, it may be made ethical. …”

“…The motive of cleanliness is a mixed one, composed of a number of motives tending in the same direction, some of which are "rational" in their nature, whilst others appear to be of the kind it is customary to speak of as "instinctive.…”